baber/WOPTO huggingface dataset:
Patent GB-664675-A (GB)
Title: Improvements in and relating to polymers of monovinyltetra-hydronaphthalenes
IPC: C08F12/32
Filed: 1947-11-10
Abstract: a - and b -monovinyltetrahydronaphthalenes are polymerized in the presence of a catalyst, e.g. boron fluoride, boron fluoride etherate, stannous or stannic chloride, benzoyl or inorganic peroxides, air, halogens, oxygen, ozone, halogen acids, light of short wavelength, activated carbon or copper, alone in solution, e.g. in benzene or in suspension, if desired, at elevated temperature, e.g. under reflux and in the presence of inhibitors such as catechol and hydroquinone. The polymers may be removed from solution in benzene by precipitation with methyl alcohol. They may be cast, pressed, extruded, rolled, machined or, with fillers such as a -cellulose, mica dust, zinc, magnesium or titanium oxides, talc, asbestos, quartz, wood flour, cellulose or wool fibres may be injection or pressure moulded. Solutions may be applied to paper or glass cloth to form dielectrics for capacitors or used to make films.  Specification 661,368, [Group IV (b)], is referred to.
Patent GB-907175-A (GB)
Title: Improvements in or relating to clearance-adjusters for internal combustion engine valve gear
IPC: F01L1/20
Filed: 1959-09-02
Abstract: 907,175. Valve gear. THOMPSON, E. A. Sept. 2, 1959 [Sept. 19, 1958], No. 29944/59. Class 7(6) A non-fluid mechanical valve clearance adjusting mechanism comprises a base 38, Fig. 2, a shiftable member 42, means positively operated by the valve gear to introduce an element of potential clearance into the valve gear whilst the train is under load, means positively operated by the valve gear to arrest the shifting of the member before the end of the valve closing movement and a resilient means 62 for removing clearance only while the valve gear load is relieved. During the closing movement of valve 20, the rocker arm 12 moves an arm 52 of cup 48 anti-clockwise, as viewed in Fig. 1. Cam slots 50 cause one-way clutch rollers 56 to engage and rotate the screw-threaded member 42 upwardly to increase valve clearance. Continued anti-clockwise movement causes slot wall 54 to engage an arm 60 of a spring-loaded cage 58, which, because arm 60 moves in a larger arc than arm 52, causes movement of rollers 56 to disengage the cup 48 from rotating the member 42. After valve 20 is seated, a pre-loaded spring 62 counter-rotates the member 42 to advance the fulcrum 16 to take up clearance. Before assembly, the springs 62 and 64 are retained in the pre-loaded condition by a temporary lock pin which engages holes in plate 68 and member 42.
Patent GB-809429-A (GB)
Title: Improvements in and relating to the preparation of wood pulp
Inventor: KEARTON CHRISTOPHER FRANK
IPC: D21C9/18
Filed: 1956-10-02
Abstract: A process for drying wood pulp containing from 15 to 75 per cent by weight of water comprises fluidizing the pulp in hot air supplied under a fluctuating pressure sufficient to cause the fluidized pulp particles to vibrate.  In practice a wood pulp slurry made in known manner is dewatered to the desired water content by means of a slurry press, a screw press or a continuous centrifuge, and the moist pulp is preferably shredded before it passes via a cyclone to a drier where, in the form of a fluidized bed, it is subjected to a pulsating supply of hot air.  The dried pulp in discrete form is suitable for use in the manufacture of viscose.
Patent GB-305697-A (GB)
Title: Improvements in means for airtightly closing bottles
IPC: B65D39/04
Filed: 1927-11-09
Abstract: 305,697. Trust, Ltd., D. & G., (Drake Process, Inc.). Nov. 9, 1927. Capsules and like closures; disc closures. - A bottle closure comprises a shallow recessed container B which fits the mouth of the bottle C and has an uncrimped narrow dished external flange B<2> which fits over the edge of the bottle neck, and a disc A which fits the recess of the container B, both disc and container being moulded from paper pulp.
Patent GB-908051-A (GB)
Title: Improvements in or relating to tipping load-lifting and carrying receptacles
Inventor: TARVER RICHARD IVOR
IPC: E02F3/42
Filed: 1957-09-25
Abstract: 908,051. Shovelling - machines. MASSEY - FERGUSON (SALES) Ltd. Dec. 24, 1958 [Sept. 25, 1957], No. 30061/57. Addition to 774,512. Class 68 (1). A tipping, load-lifting and carrying receptacle, e.g. a scoop 18, is pivotally connected at 29 to a vertically swingable arm structure 11 and at 35 to the rod 34 of a pistoncylinder unit 34, 38 pivoted at 40 to the arm structure 11. Incorporated in the rod 34 is an adjustable screwdevice which allows of pre-setting the limit the scoop may be tilted upwards when the piston-cylinder unit 34, 38 is contracted.
Patent GB-519478-A (GB)
Title: A plug and socket electrical coupling
IPC: H01R13/17
Filed: 1938-10-18
Abstract: 519,478. Two-part couplings. ZUANAZZI, F. Oct. 18. 1938, No. 30128. Convention date, Oct. 18, 1937. [Class 38 (i)] A resilient plug contact for co-operating with a plain socket comprises multiple contacts 5 formed as resilient blades radiating from and inclined to central discs clamped between washers 7 on the stem 3 of the plug. The contacts permit self alignment of the plug and socket and the latter may be adjustably mounted on its support.
Patent GB-715213-A (GB)
Title: Stabilization of the viscosities of vat dye pastes
IPC: C09B67/28
Filed: 1951-12-27
Abstract: The invention comprises a vat dye paste in which the dye is dispersed in water with a surface active dispersing agent and which is stabilized at low viscosity with a trialkylolamine triester of an unsubstituted aliphatic carboxylic acid containing at least 4 carbon atoms.  Representative of many acids specified for ester formation are butyric; caprylic, myristic, oleic and sebacic acid.  Esters specified include those of the above acids with triethanolamine and esters of the latter compound with mixtures of butyric and stearic and caprylic and oleic acids. Generally 5-75 per cent by weight of ester is used based on the dye.  Specified dispersing agents are sodium lignosulponhate and the reaction product of formaldehyde with a naphthalene sulphonate.  The dispersions are produced in the usual manner.  In Examples pastes are made from 3, 3\sv-dichloro-N-dihydro-1, 2, 1\sv, 2\sv-anthraquinoneazine, a mixture of 2, 8-diphenylanthra (2, 1, 6, 5) bisthiazole-6, 12-dione and 4, 11-dibenzamido-16 H-dinaphtho (2, 3-a, 2\sv, 3\sv-1) carbazole-5, 10, 15, 17-tetrone, and 6, 8, 25, 27-tetrahydroanthra (1, 2-b, 4, 3-b\sv, 5, 6-b", 8, 7-b" \sv) tetrakisnaphth (2, 3-g) indole-5, 7, 9, 14, 19, 24, 26, 28, 33, 38-decone together with dispersing agents such as sodium lignosulphonate and naphthalene sulphonate-formaldehyde condensation products and esters such as triethanolamine, tricaprylate, trioleate and tributyrate.  Other specified dyes are 3-chloro-N-dihydro-1, 2, 1\sv, 2\sv-anthraquinoneazine, 6, 6\sv-diethoxythioindigo, 5, 5\sv-7, 7\sv-tetrabromindigo, pyranthrone, Jade Green and isoviolanthrone.
Patent GB-1431387-A (GB)
Title: Device for adjusting the timing of the transmission of pulses of energy by distance measuring equipment
IPC: G01S7/60
Filed: 1973-06-26
Abstract: 1431387 Ultrasonic echo sounders SIMRAD AS 26 June 1973 [27 June 1972] 30321/73 Heading H4D A device for use in echo sounders comprises a detector of echoes, a phase comparator to determine whether an echo is received before or after a prescribed period of time and a variable delay circuit controlled by the detector and phase comparator to automatically delay the triggering of a transmitter, so that selected echoes will be received within the said period of time. As described the echoes are recorded on paper (3) (Fig. 1, not shown) by a pen (7) on a moving belt (2). A reference signal is given by a reed switch (5) each time the pen passes the switch. The reference signal starts a clock 10 feeding a divider 11 and counter 12. The counter 12 gives out two pulses on lines UL, LL, corresponding to the upper and lower limits of a selected range of depth, the time period between UL, LL being the above prescribed period. A counter 16 controls partial filling of counter 14, the latter counter governing the delay of triggering the transmitter. Device 18 receives echoes which are required to be recorded on paper (3) between limits UL, LL. The signals on lines UL, LL are fed to device 18 and if the selected echoes, e.g. bottom echoes, do not occur within the time period between UL, LL on four consecutive transmission cycles, the echoes are passed to device 17. This latter device determines if the echoes occur before or after the above period of time and controls counter 16 to alter the partial filling of counter 14 and hence the triggering delay. In this way selected echoes are automatically recorded within a certain range interval which is moved to follow the echoes. Alternatively the signals UL and LL may be produced by switches actuated by the moving belt (2) and the selected echoes may be displayed by a cathode-ray tube or liquid crystal display screen.
Patent GB-765742-A (GB)
Title: Process for the production of tricyclodecanedimethylal and its derivatives
IPC: C07C47/347
Filed: 1953-11-03
Abstract: In the process for the production of a dialdehyde or dialcohol according to the parent Specification, by subjecting dicyclopentadiene or a similar cyclic diolefin to the addition of CO and H2 in the oxo reaction, at below 300 atmospheres pressure, and, if desired, hydrogenating the products to alcohols, the diluent used comprises one or more saturated aliphatic hydrocarbons not completely miscible with the products of the reaction.  In examples, the reaction described is performed using as solvent heptane, giving as products after hydrogenation the tricyclodecane dimethylol, and tricyclodecane-methylol, the initial products being the corresponding methylal and dimethylal. Tricyclodecane carboxylic acid is also obtained.
Patent GB-916675-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: LEUNIG GUNTHER
IPC: F02B3/00
Filed: 1959-09-07
Abstract: 916,675. Combustion chambers; float chambers. LINDE'S EISMASCHINEN A.G., GES. FUR. Sept. 7, 1959, No. 30454/59. Class 7(3) Fuel is delivered through a passage 12 into a constricted portion of a passage 4 leading tangentially into a combustion chamber 5 the fuel being sucked from a chamber 6 into a metering chamber 10 connected to the cylinder by passage 11 during the suction stroke, and forced from the chamber 10 through passage 12 during the compression stroke. The tangential passage 4 produces whirling of the mixture in chamber 5 which deposits fuel droplets on the chamber wall. The chamber wall may be spiral in cross-section, as shown at 31 or 32, Fig. 3, and sharp edges 34 may be provided from which fuel carried round the wall by the whirling air is sprayed towards the centre of the chamber to facilitate ignition. The passage 4 may be inclined, Fig. 4, to produce a helical whirl, a sharp edge 42 being provided at the top of the chamber, The fuel may be supplied to a float chamber 22 the level in which is adjustable, by adjusting the entry orifice 26, to vary the supply to the metering chamber 10.
Patent GB-1429235-A (GB)
Title: Security sealing device
IPC: G01R11/24
Filed: 1973-06-27
Abstract: 1429235 Seals SANGAMO WESTON Ltd 27 June 1974 [27 June 1973] 30466/73 Heading E2A An electricity meter seal comprises a screw bolt which secures the meter lid in position and which cannot be released except by breaking it at a narrowed portion, thus indicating that deliberate tampering has taken place. In the form shown in Fig. 2, the lid 10 is secured in the usual way by screwing bolt 14 into nut 32 located in the housing 12, but its return movement is prevented by a spring washer 46 engaging a groove 38. So if the wire sealing the head 16 of the bolt is broken and the bolt is screwed back, it will break at neck 42 thus indicating that forced entry has taken place. In Fig. 4, the cover 60 is secured to a base 62 by means of a stud 82 which is screwed into nut 68 and projects into the cover, a threaded end receiving a threaded, sealed nut 80. A neck 86 which constitutes a zone of weakness, also receives a spring washer 88 which holds the lid in place even when the nut has been removed, and will break if the lid is forced. As a modification of this form, a one piece bolt (94, Fig. 5, not shown) can be used. In Fig. 6, the hexagon 84 of Fig. 4 is replaced by a lost-motion arm 84 giving greater rotational latitude in assembly, and the neck 98 provides a point of weakness separate from the groove 86 receiving the locating washer 88.
Patent GB-951340-A (GB)
Title: Improvements in or relating to power transmission arrangements
Inventor: SZONN REINHOLD
IPC: F16G1/28
Filed: 1961-08-24
Abstract: 951,340. Belt gearing. E. HUTZENLAUB, [trading as W. HERM MUELLER & CO. KOMM.-GES.]. Aug. 24, 1961, No. 30482/61. Addition to 849,776. Drawings to Specification. Heading F2Q. The positive driving belt described in the parent Specification has a reinforcing insert embedded at the neutral zone and transverse notches between the belt teeth extending to the insert. The insert may be metal wires, textile threads or substantially non-extensible synthetic textile material and may be in one or more layers.
Patent GB-1011650-A (GB)
Title: L-(-)-ª‡-methyl-ª‰-(3,4-dihydroxy-phenyl)-alanine
IPC: C07C/
Filed: 1964-08-04
Abstract: L - (-) - a  - Methyl - b  - (3,4 - dihydroxyphenyl) -alanine is prepared by reacting 3,4-dimethoxy-phenyl-acetone, an alkali metal cyanide and an ammonium salt in a concentrated aqueous solution of ammonia, reacting the D,L- a  - amino - a  - (3,4 - dimethoxy - benzyl) - propionitrile obtained with D-tartaric acid at a temperature of 0 DEG  to 20 DEG  C. in aqueous suspension, separating off the precipitated bitartrate of D - a  - amino - a  - (3,4 - dimethoxy - benzyl)-propionitrile, neutralizing the mother liquor and extracting with an inert organic solvent, treating the extract with a hydrohalic acid to form an L - (x) - a  - amino - a  - (3,4 - dimethoxybenzyl) - propionitrile hydrohalide and hydrolysing this by boiling with an aqueous hydrohalic acid to L - (-) - a  - methyl - b - (3,4 - dihydroxyphenyl) - alanine, the bitartrate of D - a  - amino - a  - (3,4 - dimethoxy - benzyl) - propionitrile obtained by the optical separation being recemized in a neutral or alkaline medium to D,L - a  - amino - a  - (3,4 - dimethoxy - benzyl)-propionitrile which is then returned to the separation stage.  In a modification of the process the 3,4-dimethoxy-phenyl-acetone is used in the form of its bisulphite adduct and the reaction with the alkali metal cyanide is carried out in the concentrated aqueous solution of ammonia without the use of the ammonium salt.
Patent GB-536879-A (GB)
Title: Improvements in or relating to screw couplings for electric welding cables
IPC: H01R13/207
Filed: 1939-11-21
Abstract: 536,879. Two-part couplings. MORELISSE, J. Nov. 21, 1939, No. 30519. Convention date, Nov. 28, 1938. [Class 38 (i)] A coupling for welding-cables comprises a contact-piece 1 screw-threaded at 2 screwed or soldered to one cable 3, and a co-operating member attached to the other cable 5 consisting of a contact piece 7 screwed or soldered to the cable end, and a nut 6 rotatably carried on the cable end and having a screw thread 8 that screws on to the member 1 and presses the contact 7 against it. The co-operating surfaces of the parts 1, 7 may be flat or concave and convex as shown or formed as a plug and socket to guide the parts into alignment. The plug may be split to improve the contact.
Patent GB-1155615-A (GB)
Title: Improvements in or relating to the Recording and Reproduction of Video Signals
IPC: H04N5/782
Filed: 1966-07-07
Abstract: 1,155,615. Video recording and playback. BLAUPUNKT-WERKE G.m.b.H. 7 July, 1966 [10 July, 1965], No. 30525/66. Heading G5R. In a magnetic tape recorder for recording and reproducing video signals in which only a part of a video signal is recorded and the recorded part is scanned two or more times on playback and which includes a rotating head assembly 5 having at least one head 6 operating as a record/read head, in one plane and at least one head 7 operating as a straight forward read head angularly displaced from the record/ read head 6 and lying in another plane, the angular spacing between the head 6 in the one plane and the head 7 in the other plane and the speed of the magnetic tape 1 are selected so that head 7 runs along a recorded track which is also scanned by record/read head 6. As shown the angular distance between heads 6, 7 is equal to slightly more than 180 degrees, the magnetic tape 1 being wound in the form of a helical coil with a pitch of approximately two magnetic tape widths in a sector of slightly more than 180 degrees about head assembly 5. The plane of head 7 is separated by approximately half a track space from the plane of head 6. In a modification (not shown) one record/read head and three read heads are provided, the planes of the read heads being spaced from the plane of the record/read head by a quarter of a track space and the angular spacing of the read heads from the record/read head being just greater than 90, 180 and 270 degrees respectively, the magnetic tape beng wound as a helical coil around the head assembly with a pitch of approximately four magnetic tape widths in a sector of 90 degrees.
Patent GB-136543-A (GB)
IPC: B01J21/08
Filed: 1919-12-06
Abstract: A silica gel, suitable for absorbing gases and capable of retaining its properties up to 700 DEG  C., is obtained by mixing equal volumes of an acid, such as hydrochloric acid, and sodium silicate solution of such strength that all the silica is liberated, and efficiently stirring the mixture so that immediate separation of silica is prevented.  The temperature of the solutions may be 35-80 DEG  C., preferably 45-55 DEG  C.  When the gel has formed, it is broken up, washed, and slowly dried.  The drying is effected in a current of air at 75-120 DEG  C. followed by increasing the temperature to 300-400 DEG  C., or by drying at the lower range of temperature in a vacuum.ALSO:A silica gel, suitable for absorbing gases and capable of retaining its properties up to 700 DEG  C., is obtained by mixing equal volumes of an acid, such as hydrochloric acid, and sodium silicate solutions of such strength that all the silica is liberated, and efficiently stirring the mixture so that immediate separation of silica is prevented.  The temperature of the solutions may be 35-80 DEG  C., preferably 45-55 DEG  C  When the gel has formed, it is broken up, washed, and slowly dried.  The drying is effected in a current of air at 75-120 DEG  C., followed by increasing the temperature to 300-400 DEG  C., or by drying at the lower range of temperature in a vacuum.
Patent GB-430791-A (GB)
Title: A method of and apparatus for charging accumulator batteries in series
IPC: H02J7/04
Filed: 1934-10-25
Abstract: 430,791. Charging and discharging batteries. BRITANNIA BATTERIES, Ltd., Union Street, Redditch, Worcestershire.- (Accumulatoren-Fabrik Akt.-Ges.; 3, Askanischer Platz, Berlin) Oct. 25, 1934, No. 30636. [Class 38 (iv)] In a system for charging a number of batteries 61, 62, 63, in series, the occurrence of a voltage across any battery exceeding the gassing voltage, due, for example, to gassing or sulphation, causes insertion of a resistance W, W2 or W3, in shunt with that battery so as to reduce its charging current without affecting the current flowing through the other batteries. This is effected by relays sch1, sch2 and sch3 responsive to the voltages across the respective batteries and arranged to switch in the resistances W1, W2, W3. Auxiliary contacts k1, k2, k3 on these relays control the circuit of a relay sp which is de-energized and opens a circuit breaker n to disconnect the resistances from the batteries when all the batteries have reached the gassing state. Fully charged batteries may automatically be disconnected from the circuit and may be replaced by equivalent resistances or the charging voltage may be automatically reduced. In a modification two batteries are charged in series and a single resistance is controlled by a relay so as to be connected in shunt with the battery which first reaches gassing voltage and to be disconnected when both batteries have reached this state. The relay has a differential action and the energization of its two coils is controlled by further relays responsive to the voltages of the respective batteries. Further relays responsive to the state of charge of the battieies cut out a fully charged battery and replace it by a resistance. When all the batteries are cut out the supply circuit is opened.
Patent GB-693217-A (GB)
Title: Improvements in or relating to power units incorporating a gas turbine
IPC: F23R3/38
Filed: 1949-11-29
Abstract: 693,217. Gas turbine plant. SZYDLOWSKI. J. Nov. 29, 1949 [Nov. 30, 1948], No. 30661/49. Class 110(iii) In a gas turbine plant, the air compressor casing 2, combustion chamber casing 4, 6 and the turbine casing 8 are connected together by shouldered or flanged bearing surfaces, and air passes first axially then radially through the compressor 16, 17, through the vanes 19 which impart pure radial movement thereto, through the right-angled duct 20 and then axially through the second set of guide vanes 21 to the combustion chamber casing 4, 6. The turbine auxiliaries include a fuel pump, and oil pump for pressure lubrication, and a starter and are contained in a casing 11 and driven by gearing in the casing 1. The hollow shaft 18 on which the compressor and turbine rotors are mounted is journaled in bearings disposed on the upstream side of the compressor and on the downstream side of the turbine. The casing 1 is provided with radially disposed vanes 13 through which air passes radially inwardly to the axial flow stage 16 of the compressor. The combustion chamber is of annular type as described in Specification 686,908, fuel being supplied through the jets 28 in the hollow turbine-compressor shaft 18 and the combustion products passing through the hollow nozzles 9 to the turbine. The turbine exhaust passes through the casing 9a in which is disposed a core 35 supported from the casing 9a by hollow struts 36. The turbine rotor comprises two discs 29, 31 spaced apart by a disc 32 and connected to the shaft 18 and the stub shaft 43 by means of bolts 33. The stub shaft is supported in a bearing 40 which is supported from the combustion chamber and turbine casings by means of links 39 passing through the hollow struts 36. The bearing is cooled by means of a fan 44 inside the hollow stub shaft 43 which draws air through the hollow struts 36 and discharges it into the exhaust gas flow. The plant shown in Fig. 1 is a propellor turbine engine, the power shaft 51 being driven by gearing 50, 49 from the lay shaft 48. Fuel is supplied to the hollow shaft 18 through a rotary distributer 23, leakage being prevented by a double labyrinth 25, 26 to which compressed air is supplied. The invention is also shown applied in the case of a jet turbine engine.